Daltonvicky

(b) 3.5 billion years ago. -ANSWER - Studies of the Precambrian eon have shown that life first appeared on Earth approximately __. (a) 570 million years ago. (b) 3.5 billion years ago. (c) 4.6 billion years ago. (d) 5 billion years ago. (c) pumice Choice (c) is correct. Pumice comes from volcanic rock when it cools very quickly on the surface. The small air bubbles formed in it are visible to the naked eye. The bubbles give it its lightweight feel and increase its usefulness in many...

A carpenter needs to cut four sections, each 3-feet 8-inches long, from a piece of molding. If the board is only sold by the foot, what's the shortest length of board she can buy? A. 15 feet B. 14 feet C. 16 feet D. 12 feet -ANSWER - Answer: A)15 Convert the mixed number to inches. 3 feet 8 inches equals 44 inches (12 inches per foot × 3 feet = 36 inches + 8 inches = 44 inches). 44 inches (length each section needs to be) × 4 (number of sections needed) = 176 inches (total mol...

Which system is required to start an automobile? A. Electrical B. Electrical C. Electrical D. Drive train -ANSWER - The correct answer is (A) Electrical. A car's electrical system controls lighting, starting, charging, and accessories. Which of the following is NOT part of an internal combustion engine? A. piston ring B.connecting rod C. clutch D.cylinder head -ANSWER - The correct answer is (C) clutch. The clutch is part of the drive train system. In a four-stroke engin...

Which of these is the best explanation of how a smooth round stone became smooth? -ANSWER - It was in a stream for a long When a lobster grows a claw to replace one that was lost, the process is called -ANSWER - regeneration. Any astronomical body that revolves around a larger body is called -ANSWER - a satellite. In chemistry, to be classified as an organic substance, a substance must contain -ANSWER - Carbon atoms. Which element does NOT contain any neutrons? -ANSWER - hydrogen ...

V=I x R -ANSWER- Which of the following is the correct formula for Ohm's Law? A Schematic -ANSWER- An engineer who wants to document an electric circuit would create which of the following? It's addressed by raising current and lowering voltage across the transmission line -ANSWER- Which of the following is not true about a line drop? The primary voltage is higher than the secondary voltage -ANSWER- Which of the following is not a characteristic of a step-up transformer? Resistor -...

Electrical power can be calculated with the following formula: P = I x V What does the letter I represent in this formula? A. watts B. voltage C. current D. impedance - ANSWER -The correct answer is (C) current. P represents power, which is measured in watts. I represents current, which is measured in amperes. V represents voltage which is measured in volts. What is the load in this basic circuit model? See Picture A. A B. B C. C D. D - ANSWER -The correct answer is (C) C. I...

Electrical power can be calculated with the following formula: P = I x V What does the letter I represent in this formula? A. watts B. voltage C. current D. impedance -ANSWER - The correct answer is (C) current. P represents power, which is measured in watts. I represents current, which is measured in amperes. V represents voltage which is measured in volts. What is the load in this basic circuit model? See Picture A. A B. B C. C D. D -ANSWER - The correct answer is (C) C. I...

o -ANSWER - gravitational pull of -ANSWER - Photosynthesis -ANSWER - One one-hundredth -ANSWER - cooled magma or -ANSWER - exosphere -ANSWER - H2O -ANSWER - 37.7% -ANSWER - 2 1/3 miles -ANSWER - 84 -ANSWER - $7.00 -ANSWER - 200% -ANSWER - 2 x 5 x 23 -ANSWER - 44 -ANSWER - series -ANSWER - unconcerned -ANSWER - harmless -ANSWER - dull -ANSWER - easily convinced -ANSWER - floated -ANSWER - at sea -ANSWER -

Abrupt -ANSWER - Beginning, ending, or changing suddenly Acrid -ANSWER - Harshly pungent or bitter Becalm -ANSWER - To make quiet Buffoon -ANSWER - A clown Chaos -ANSWER - Utter disorder and confussion Cognizent -ANSWER - Taking notice of something Defer -ANSWER - To put off or delay to later time Derision -ANSWER - To act of ridiculing or making fun of something Effulgence -ANSWER - Splendor Enmity -ANSWER - Hatred Famish -ANSWER - To cause extreme hunger or thirst...

1: If x = 8, what's the value of y in the equation y = (x2 ÷ 4) − 2? A. 14 B. 16 C. 18 D. 20 -ANSWER - 14 2: The cube of 5 is A. 125 B. 25 C. 15 D. 50 -ANSWER - 125 3: 2.5 × 33 = A. 22.5 B. 75.0 C. 67.5 D. 675.0 -ANSWER - 67.5 4: The fourth root of 16 is A. 4 B. 1 C. 3 D. 2 -ANSWER - 2 5: What's the equation of a line that passes through points (0, -1) and (2, 3)? A. y = 2x − 1 B. y = 2x + 1 C. x = 2y − 1 D. x = 2y + 1 -ANSWER - A 6: (12 yar...